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Design of praseodymium-doped chalcogenide micro-disk emitting at 4.7 μm

Abstract : A compact amplifier based on chalcogenide Pr3+-doped micro-disk coupled to two ridge waveguides is designed and refined by means of a home-made computer code. The gain G ≈ 7.9 dB is simulated for a Pr3+ concentration of 10 000 ppm, input signal power of -30 dBm at the wavelength 4.7 µm and input pump power of 50 mW at the wavelength 1.55 µm. In the laser behavior, i.e. without input signal, the maximum slope efficiency S = 8.1 × 10-4 is obtained for an input pump power of 2 mW. This value is about six times higher than that simulated for an optimized erbium-doped micro-disk.
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Giuseppe Palma, Mario Christian Falconi, Florent Starecki, Virginie Nazabal, Julien Ari, et al.. Design of praseodymium-doped chalcogenide micro-disk emitting at 4.7 μm. Optics Express, Optical Society of America - OSA Publishing, 2017, 25 (6), pp.7014-7030. ⟨10.1364/OE.25.007014⟩. ⟨hal-01515164⟩

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